Question

A wire has resistance 12 ohm it is bent in form of circle effective resistance between the two points and any diameter of the circle is

Answer 1

$\mathfrak{\huge{\red{\underline{\underline{AnswEr :}}}}}$

» By taking any diameter, the circumference would become half.

» As a result each half would have a resistance of 6Ω that are connected in parallel.

» So, effective resistance would be 3Ω

Answer 2

$\huge\mathcal{BONJOUR}$

wire is bent in the form of circle :

Its means that resistance is divided into 2

Now join the wire in parallel circuit

6ohm and 6ohm

effective resistance is

1/R=1/R1+1/R2

1/R=1/6+1/6

1/R=2/6

1/R=3

R=3 ohm